It is a state, in which the antigen cannot activate the cells.
Macrophage, which is found in alveolus of the lung, is alveolar macrophage.
It is a form of antibody, which is secreted by cells of B lineage.
It is a developing T cell, which is present in the thymus.
It acts as a co receptor for MHC class II restricted T cell activation; receptor for HIV.
Toxin produced by a microorganism, which is released into surrounding fluid, is called exotoxin.
Immunoglobulin domains are folded into compact structures, which are called as immunoglobulin folds.
The cytotoxic T lymphocytes which kill foreign antigens complexes with MHC I molecules are called altered self-cells.
Mature B cell is called naïve B cell.